Principal Software Engineer
Job in
City Of London, Central London, Greater London, England, UK
Listed on 2025-11-20
Listing for:
Monolith
Full Time
position Listed on 2025-11-20
Job specializations:
-
Software Development
Software Engineer, Software Architect, Cloud Engineer - Software, AI Engineer
Job Description & How to Apply Below
Join to apply for the Principal Software Engineer role at Monolith
We're seeking a Principal Software Engineer to lead the architectural evolution of our platform as we scale to meet growing demand from the world's largest engineering companies. This is a hands‑on technical leadership role where you'll drive critical architectural initiatives while mentoring our engineering team.
Key Responsibilities- Own technical decisions balancing immediate business needs with long‑term architectural goals
- Drive the ongoing transition from monolithic to distributed architecture
- Design and implement architecture to be AI‑agentic ready, enabling rapid deployment of AI products and MCP server integrations
- Build and optimize distributed compute services
- Implement reliable workflow orchestration patterns
- Mentor mid‑level developers, establishing engineering best practices and architectural patterns
- Collaborate with product and business stakeholders to translate requirements into technical solutions
- Guide technical decision‑making and prioritization across the engineering organization
- Interview and onboard new engineers
- 12+ years of software engineering experience with at least 2 years in principal/staff engineering roles
- Expert‑level Python development skills with production experience at scale
- Deep expertise in distributed systems architecture
- Strong Kubernetes experience with production workloads
- Hands‑on experience with workflow orchestration tools (Temporal, Airflow, or similar)
- Cloud platform expertise (AWS required, Azure beneficial)
- Experience with data processing frameworks (Spark, Athena, or similar)
- Proven track record of leading architectural transformations in growing companies
- Excellence in technical communication and stakeholder management
- Experience with systems having ML Engineering and ML Ops aspects
- Technical Excellence:
Clean, maintainable code and scalable system design - Pragmatic Problem‑Solver:
Balance short‑term delivery with long‑term goals - Strong Leadership:
Proactively identify problems and drive solutions - Mentorship Mindset:
Share knowledge and guide others - Ownership Mentality:
Take full responsibility for outcomes - Customer Obsession:
Deliver value to our customers
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